Thank you for asking Healthcare majic. My name is Dr Ehsan Ullah & I have gone through your query. is she having headache alond with other symptoms you mentioned..If yes then get CT scan brain plain... If there is no any complaints of headache then it seems that she has generalised weakness leading these problems..i would like to advice to take proper multi-vitamins along with anti-emetics for few days and good diet... also get complete blood count with ESR to rule out if she has problem dut to low hemoglobin in blood... Hope this may help you. Let me know if anything not clear. Thanks.